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azamat
2 years ago
12

A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane flies 90.0 m above the

glacier at a speed of 180 m/s . You may want to review (Pages 86 - 90) . For help with math skills, you may want to review: Mathematical Expressions Involving Squares For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Dock jumping. Part A How far short of the target should it drop the package? Express your answer using three significant figures with the appropriate units.
Physics
1 answer:
romanna [79]2 years ago
6 0

Answer:

d = 771.3m

Explanation:

Let's first calculate the time of flight:

Yf = Yo+Voy*t-g*t^2/2  where Voy=0. Solving for t:

t = \sqrt{2*90/9.8} =4.285s

Now we calculate the horizontal displacement, wihch is the distance from the target to drop the package:

Xf = d = Vox*t

d = 180*4.285 = 771.3m

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Answer:

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b. Jerry only works because he receives a very large income.

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d. Maury gives money to charities because he wants other people to think he is very generous.

The answer is c. Rikki is usually shy, but at work she appears to be quite outgoing.

Lewin's interactionist perspective explains that an individual’s behavior is usually dependent on his personal behavior/ trait and the environment. The best option is that Rikki is usually shy which is her personal behavior but at work she appears to be quite outgoing due to her environment.

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3 years ago
What is quantum physics? ​
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2 years ago
A 2.74 g coin, which has zero potential energy at the surface, is dropped into a 12.2 m well. After the coin comes to a stop in
VikaD [51]

Answer:

B. - 0.328

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<em>The S.I unit of potential energy is Joules (J).</em>

<em>It can be expressed mathematically as</em>

<em>Ep = mgh........................... Equation 1</em>

<em>Where Ep = potential energy, m = mass of the coin, h = height, g = acceleration due to gravity,</em>

<em>Given: m = 2.74 g = 0.00274 kg, h = 12.2 m, g = 9.8 m/s²</em>

Substituting these values into equation 1

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<em />

7 0
2 years ago
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1 year ago
Convert the speed of light 3.0x10^8 m/s to km/day
Aleksandr [31]

Answer: 2.592 \times 10^{8}km/day

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7 0
3 years ago
Read 2 more answers
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